diagnosing-bugs

Guide six-phase debugging to isolate software defects and performance regressions.

110|4|Updated Jul 19, 2016

Search Tags:#testing #performance #debugging #troubleshooting #root cause analysis #reproduction

Ready to run

npx skills add https://github.com/deathbeam/dotfiles --skill diagnosing-bugs-deathbeam

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: diagnosing-bugs
Source: https://github.com/deathbeam/dotfiles/tree/main/agents/.agents/skills/diagnosing-bugs
Command: npx skills add https://github.com/deathbeam/dotfiles --skill diagnosing-bugs-deathbeam

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) components.

What problem does it solve?

This skill solves the problem of aimless debugging by providing a rigorous, repeatable framework for isolating and fixing complex software defects and performance regressions.

Core Features & Use Cases

Feedback Loop Construction: Guides the creation of tight, deterministic, and red-capable reproduction loops to ensure the bug is caught reliably.
Structured Debugging: Implements a six-phase methodology covering reproduction, minimization, hypothesis generation, instrumentation, and regression testing.
Use Case: When a user reports a non-deterministic performance regression or a hard-to-reproduce crash, this skill forces the creation of a minimal, automated test case before any code changes are attempted.

Quick Start

Use the diagnosing-bugs skill to establish a feedback loop and isolate the root cause of the reported application crash.

Frequently Asked Questions about diagnosing-bugs

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I debug a non-deterministic performance regression reliably?▼

To debug a non-deterministic performance regression, you need a deterministic reproduction loop. This skill provides a six-phase framework to construct tight, red-capable test harnesses that catch the regression reliably before any code changes.

What is the best way to isolate the root cause of a complex software crash?▼

Isolating the root cause of a software crash requires structured hypothesis testing and minimization. The skill implements a six-phase methodology covering reproduction, instrumentation, and regression verification to pinpoint the exact defect.

How do I create a minimal test case for hard-to-reproduce bugs?▼

Creating a minimal test case for hard-to-reproduce bugs requires a structured minimization phase. The skill guides you in stripping away extraneous variables to build an automated test harness that deterministically reproduces the defect.

Do I need shell scripting to troubleshoot software defects systematically?▼

Yes, troubleshooting software defects systematically requires the ability to execute shell scripts and manage test harnesses. This skill depends on running scripts to maintain a tight feedback loop during the instrumentation and hypothesis testing phases.

What is a six-phase debugging framework and when should I use it?▼

A six-phase debugging framework is a structured methodology for isolating complex software defects through reproduction, minimization, hypothesis generation, instrumentation, and regression testing. Use it when facing performance regressions or crashes that resist aimless debugging.